Nick Carter, whose sister Leslie Carter (center) died on Tuesday, will continue his string of solo shows in the US despite the sudden family tragedy. (PHOTO: REUTERS / Fred Prouser).

The show must go on for Nick Carter.

Less than one day after news broke of his sister Leslie Carter's sudden death, the Backstreet Boy confirmed that he will finish his remaining solo tour dates.

Performing is cathartic to me and I am dedicating the rest of my tour to my sister since she loved to watch me perform, Carter, 32, said on his Web site on Wednesday afternoon.

25-year-old Leslie passed away on Tuesday night in upstate New York. The cause of death is still unknown.

Leslie leaves behind her husband of nearly four years, Mike, and their baby girl Alyssa, born just 10 months ago.

Meanwhile younger brother Aaron Carter, who is currently in the off-Broadway production of The Fantasticks, will be taking time off to be with his family.

Aaron is taking a few days off from the show . . . his Fantasticks family loves him and offers him support and prayers during this difficult time, John Capo, a spokesperson for the show, told E! News.

During his absence, Carter will be covered by his understudy and friend Matt Leisy, according to Capo.

Nick, Aaron, Leslie and two other Carter siblings once starred in the E! reality show House of Carters, which ran for eight episodes in 2006. The show documented big brother Nick's efforts in trying to take care of his siblings and their professional careers as singers, dancers and models.

In 2001 Leslie, an aspiring singer, was featured on the soundtrack to the first Shrek film, with the single Like Wow!

The family legitimately doesn't know what happened . . . she loved her family, she loved her baby, a source told Us Weekly.

Nick Carter is scheduled to perform at New York City's Irving Plaza on Thursday, followed by eight more shows through Feb. 12. He will also join the Backstreet Boys for a two-month world tour beginning on Apr. 20 in Belfast.Here are the rest of Carter's solo tour dates, in support of his recently re-released second album, I'm Taking Off.